From: Haimin Zhang tcs_kernel@tencent.com
[ Upstream commit 3ccdcee28415c4226de05438b4d89eb5514edf73 ]
Without it, kernel crashes in map_get_next_key().
Fixes: 9330986c0300 ("bpf: Add bloom filter map implementation") Reported-by: TCS Robot tcs_robot@tencent.com Signed-off-by: Haimin Zhang tcs_kernel@tencent.com Signed-off-by: Alexei Starovoitov ast@kernel.org Acked-by: Joanne Koong joannekoong@fb.com Link: https://lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel@gma... Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/bpf/bloom_filter.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c index 277a05e9c9849..b141a1346f72d 100644 --- a/kernel/bpf/bloom_filter.c +++ b/kernel/bpf/bloom_filter.c @@ -82,6 +82,11 @@ static int bloom_map_delete_elem(struct bpf_map *map, void *value) return -EOPNOTSUPP; }
+static int bloom_map_get_next_key(struct bpf_map *map, void *key, void *next_key) +{ + return -EOPNOTSUPP; +} + static struct bpf_map *bloom_map_alloc(union bpf_attr *attr) { u32 bitset_bytes, bitset_mask, nr_hash_funcs, nr_bits; @@ -192,6 +197,7 @@ const struct bpf_map_ops bloom_filter_map_ops = { .map_meta_equal = bpf_map_meta_equal, .map_alloc = bloom_map_alloc, .map_free = bloom_map_free, + .map_get_next_key = bloom_map_get_next_key, .map_push_elem = bloom_map_push_elem, .map_peek_elem = bloom_map_peek_elem, .map_pop_elem = bloom_map_pop_elem,